CN106705201A - Underground gravity heat pipe direct heating device - Google Patents

Abstract

The invention provides a direct heating device for buried gravity heat pipes. The decorative protective cover of the heating device is connected to the aluminum airfoil heat sink by screws; It is connected to the horizontal main pipe; the horizontal main pipe is connected to the heat insulation section of the buried gravity heat pipe through a tee; the liquid filling port is connected to one end of the tee. The beneficial effect is that the direct heating device of the buried gravity heat pipe fully realizes the utilization of geothermal energy. In building heating energy consumption, it can partially replace or fully replace conventional energy consumption, and partial replacement can achieve energy saving of 20%-30%; in some places such as places with low room temperature requirements, it can even completely replace conventional energy. Utilizing the automatic one-way heat transfer characteristics of the gravity heat pipe, there are no moving parts, and no manual operation is required during operation. The device is especially suitable for the on-duty heating system of industrial buildings, and has the advantages of energy saving and no operating cost.

Description

Buried gravity heat pipe direct heating device

technical field

The invention relates to a heating device, in particular to an underground gravity heat pipe direct heating device.

Background technique

At present, the existing heating technology still mainly relies on conventional energy, but the consumption of conventional energy has aggravated environmental pollution and caused many problems. Therefore, rational use of new energy such as geothermal energy is an inevitable choice.

At present, there is no technology of using buried gravity heat pipes to directly heat radiators, but using buried gravity heat pipes to directly heat radiators for low-temperature heating rooms that do not require high room temperature can improve the utilization rate of geothermal energy and reduce the consumption of conventional energy. Consumption, in line with the requirements of social energy-saving development.

As a high-efficiency heat exchange unit, the buried gravity heat pipe has the advantages of one-way heat transfer and simple structure. And it completely relies on the characteristics of the working medium in the heat pipe to automatically operate and absorb geothermal energy, without power consumption and maintenance. Therefore, the study of a direct heating device of buried gravity heat pipes for heating can not only achieve the purpose of low-temperature heating, but also greatly save the consumption of conventional energy.

Contents of the invention

The purpose of the present invention is to provide a direct heating device for buried gravity heat pipes, which is especially suitable for occasions with low heating room temperature requirements, such as on-duty heating for industrial workshops and warehouses, which can efficiently utilize shallow geothermal energy and avoid power consumption. Conventional energy is saved.

In order to achieve the above object, the technical solution adopted by the present invention is to provide a direct heating device of the buried gravity heat pipe, the heating device is arranged in the floor of the heating room and the soil under the floor, wherein: the heating device includes the buried gravity heat pipe Heat absorption section, heat insulation section of gravity heat pipe, decorative protective cover, aluminum airfoil heat sink, multiple heat dissipation branch pipes, horizontal main pipe and liquid filling port; the decorative protective cover is connected to the aluminum airfoil heat sink by screws; The aluminum airfoil heat sink is set on the outer periphery of the heat dissipation branch pipe and connected; each heat dissipation branch pipe is connected to the horizontal main pipe and communicated; the horizontal main pipe is connected to the insulation section of the buried gravity heat pipe through a tee; the liquid filling port is connected to the tee one end.

The effect of the present invention is that the direct heating device of the buried gravity heat pipe is filled with phase-change liquid ethanol, and the phase-change liquid can extract shallow geothermal energy from underground to the room through the change of its own physical properties, realizing the full utilization of geothermal energy . In building heating energy consumption, it can partially replace or fully replace conventional energy consumption, and partial replacement can achieve energy saving of 20%-30%; in some places such as places with low room temperature requirements, it can even completely replace conventional energy. Utilizing the automatic one-way heat transfer characteristics of the gravity heat pipe, there are no moving parts, and no manual operation is required during operation, so the system has almost no operating costs. The device is especially suitable for the on-duty heating system of industrial buildings, and has the advantages of energy saving and no operating cost.

Description of drawings

Fig. 1 is a schematic diagram of the first device of the heating device of the present invention;

Fig. 2 is a schematic diagram of the buried gravity heat pipe of the first device of the heating device of the present invention;

Fig. 3 is a schematic diagram of the aluminum airfoil heat sink of the heating device of the present invention;

Fig. 4 is a schematic cross-sectional view of the second heating device of the present invention.

In the picture:

1. Decorative protective cover 2. Aluminum airfoil heat sink 3. Cooling branch pipe 4. Horizontal main pipe

5. Heat absorption section 6. Heat insulation section 7. Liquid filling port 8. Tee 9. Heat dissipation aluminum plate

detailed description

The structure of the buried gravity heat pipe direct heating device of the present invention is described in conjunction with the accompanying drawings.

The heating principle of the buried gravity heat pipe direct heating device of the present invention is: the buried gravity heat pipe direct heating device is arranged in the floor of the heating room and the soil under the floor, and the heating device includes the heat absorbing section 5 of the buried gravity heat pipe, Heat insulation section 6 of gravity heat pipe, decorative protective cover 1, aluminum airfoil heat sink 2, multiple heat dissipation branch pipes 3, horizontal main pipe 4 and liquid filling port 7; decorative protective cover 1 is connected to the aluminum airfoil by screws On the heat sink 2; the aluminum airfoil heat sink 1 is set on the outer periphery of the heat dissipation branch pipe 3 and connected; each heat dissipation branch pipe 3 is connected to the horizontal main pipe 4 and communicated; the horizontal main pipe 4 is connected to the buried gravity heat pipe through the tee 8 On the insulation section 6; the liquid filling port 7 is connected to one end of the tee 8.

The heat absorbing section 5 of the buried gravity heat pipe is placed vertically in the soil constant temperature layer to directly absorb shallow geothermal energy. The heat insulation section 6 of the gravity heat pipe is placed vertically between the indoor ground and the soil constant temperature layer, and a polyurethane insulation layer is arranged outside. The radiating branch pipe 3 connected on the horizontal main pipe 4 is in the shape of a comb. The decorative protective cover 1 is connected to the aluminum airfoil heat sink 2 by screws, and has a ventilation hole on the upper part. The gravity heat pipe is filled with phase-change liquid ethanol with 40% of the volume of the gravity heat pipe through the liquid filling port 7, and the buried gravity heat pipe is made of copper, aluminum and other materials.

The function of the buried gravity heat pipe direct heating device of the present invention is realized in this way:

The heat absorbing section 5 and the heat insulating section 6 of the heating device are vertically placed in the soil, wherein the heat absorbing section 5 is placed in the soil constant temperature layer for directly absorbing shallow geothermal energy, and the heat insulating section 6 is placed in the soil constant temperature layer and Between the ground, there is a polyurethane insulation layer; the cooling branch pipe 3 is placed vertically, and the horizontal main pipe 4 is placed horizontally. The decorative protective cover 1 is screwed on the aluminum airfoil heat sink 2; the aluminum airfoil heat sink 2 and the heat dissipation branch pipe 3 are connected by expansion joint; the heat dissipation branch pipe 3 and the horizontal main pipe 4 are connected by welding, and the horizontal The main pipe 4 and the heat insulation section 6 are connected through a tee 8; the liquid filling port 7 is welded to the end of the tee 8 that is not connected, and the phase change liquid ethanol is filled into the buried gravity heat pipe through the liquid filling port 7, and the filling amount It is 40% of the volume of the buried gravity heat pipe. The buried gravity heat pipe is made of copper, aluminum and other metal materials. Phase-change liquid ethanol absorbs shallow geothermal energy in the heat-absorbing section 5, transforms from a liquid state to a gaseous state, and naturally rises to the cooling branch pipe 3 of the gravity heat pipe through the heat-insulating section 6, and condenses into a liquid state at the cooling branch pipe 3, and releases heat at the same time , the liquid phase-change liquid ethanol flows back to the heat-absorbing section 5 under the action of gravity to continue to participate in the cycle, and the whole process runs automatically depending on the own characteristics of the phase-change liquid.

Example 1

As shown in Figure 1, the heating device includes a heat absorbing section 5 of a gravity heat pipe, an adiabatic section 6 of a gravity heat pipe, a decorative protective cover 1, an aluminum airfoil fin 2, a heat dissipation branch pipe 3, a horizontal main pipe 4 and a liquid-filled Port 7; the decorative protective cover 1 is screwed on the aluminum airfoil heat sink 2; the aluminum airfoil heat sink 2 is connected to the heat dissipation branch pipe 3 through expansion joints; the heat dissipation branch pipe 3 and the horizontal main pipe 4 are connected by welding; the horizontal mother pipe The tube 4 is connected to the adiabatic section 6 of the gravity heat pipe through a tee 8; the liquid filling port 7 is welded to the end of the tee 8 which is not connected. The heat-absorbing section 5 and the heat-insulating section 6 are vertically placed in the soil, wherein the heat-absorbing section 5 is placed at a depth of 10m-15m in the soil constant temperature layer for direct absorption of shallow geothermal energy, and the heat-insulating section 6 is placed between the soil constant temperature layer and Between the ground, there is a polyurethane insulation layer; the heat dissipation branch pipe 3 and the horizontal main pipe 4 are placed in the room, the heat dissipation branch pipe 3 is placed vertically, and the horizontal main pipe 4 is placed horizontally. The system is filled with phase-change liquid ethanol through the liquid filling port 7. The phase-change liquid ethanol absorbs shallow geothermal energy in the heat-absorbing section 5 relying on its own physical characteristics, and is converted from a liquid state to a gaseous state. Rising to the heat dissipation branch pipe 3 of the gravity heat pipe, it condenses into a liquid state when it encounters cold at the heat dissipation branch pipe 3, and at the same time releases heat to meet the low temperature heating requirements of the room. The condensed phase change liquid ethanol flows back along the heat pipe to the buried gravity heat pipe under gravity The heat section 5 circulates automatically in this way, and the heat is continuously guided from the heat absorbing section 5 of the buried gravity heat pipe to the radiating branch pipe 3 of the buried gravity heat pipe.

Example 2

As shown in Figure 4, in this embodiment, the decorative protective cover 1 is removed, and a pair of face-to-face heat dissipation aluminum plates 9 are used to replace the aluminum airfoil heat sink 2, and a strip-shaped slot is left on the heat dissipation plate. The heat dissipation branch pipe 3 of the gravity heat pipe is embedded in the groove, and the heat dissipation plates 8 arranged facing each other are fixed by screw connection. Other positions are similar to Example 1.

The above-mentioned embodiments only express several implementation modes of the present invention, which should not be construed as limiting the patent scope of the present invention. For those of ordinary skill in the art, on the premise of not departing from the concept of the present invention, some modifications and improvements are within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (6)

1. a kind of buried gravity assisted heat pipe direct heating device, the heating installation is arranged on the floor of Heating Room and underfloor soil In earth, it is characterized in that：The heating installation includes endotherm section (5), the adiabatic section (6) of gravity assisted heat pipe, the decoration of buried gravity assisted heat pipe Property protective cover (1), aluminum aerofoil profile fin (2), many heat-radiation branch pipes (3), horizontal main pipe (4) and implementation of port (7)；Dicoration is anti- Shield (1) is connected by screw in aluminum aerofoil profile fin (2)；Aluminum aerofoil profile fin (2) is sleeved on heat-radiation branch pipe (3) outward Week connection；Every heat-radiation branch pipe (3) is connected in horizontal main pipe (4) and connects；Horizontal main pipe (4) is connected to by threeway (8) On the adiabatic section (6) of buried gravity assisted heat pipe；Implementation of port (7) is connected to one end of threeway (8).

2. a kind of buried gravity assisted heat pipe direct heating device according to claim 1, it is characterized in that：Buried gravity assisted heat pipe Endotherm section (5) is vertically placed in soil thermostat layer and directly absorbs shallow layer geothermal energy.

3. a kind of buried gravity assisted heat pipe direct heating device according to claim 1, it is characterized in that：The thermal insulation of gravity assisted heat pipe Section (6) is vertical between subsurface disposed within and soil thermostat layer, and peripheral hardware polyurethane insulation coating.

4. a kind of buried gravity assisted heat pipe direct heating device according to claim 1, it is characterized in that：It is connected to horizontal main pipe (4) heat-radiation branch pipe (3) on is in comb-like form.

5. buried gravity assisted heat pipe direct heating device according to claim 1, it is characterized in that：The ornamental protective cover (1) it is connected by screw in aluminum aerofoil profile fin (2), and air vent is provided with top.

6. buried gravity assisted heat pipe direct heating device according to claim 1, it is characterized in that：It is described by implementation of port (7) To the phase-transition liquid ethanol that gravity assisted heat pipe volume 40% is filled in gravity assisted heat pipe, buried gravity assisted heat pipe uses copper, aluminum metal material system Make.